I replaced the p304 misfire code on my 2002 kia rio, it is still hesitant to want to shut off, it also shows a code p1500. My low beam lights inside light and radio went out at once. Checked the fuses and bulbs. I replaced the spark plugs also.
Hi there,
This code points towards no vehicle speed signal to TCM. This code has no relation to you changing your spark plugs. Here is some more info on this code.
P1500 KIA - No Vehicle Speed Signal to TCM Read more: https://www.autocodes.com/p1500_kia.html
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